This is the relevant information: The tallest U.S. President was Abraham Lincoln at 6 feet 4 inches (193 centimeters), while the shortest was James Madison at 5 feet 4 inches (163 centimeters).
This justifies what answer for what question? Q & A: 
Passage: The tallest U.S. President was Abraham Lincoln at 6 feet 4 inches (193 centimeters), while the shortest was James Madison at 5 feet 4 inches (163 centimeters).

Question: Based on this passage, who was the shortest president and how tall was he?
James Madison at 5 feet 4 inches ( 163 centimeters )